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Very weird fuel pump relay issue M42

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    Very weird fuel pump relay issue M42

    Hey guys, I'm having a very peculiar problem with my car and I'm stomped. I searched around and can't find a similar problem. Here is the context:

    -Fuel pump relay does not click
    -DME relay clicks and sends 12v to exciter pins of the relay
    -Relay has 12v between pin 30 and 87
    -Relay exciter is earthed
    -Car runs if I jump pin 30 and 87
    -Tested relay on another battery, it clicks
    -Tested with different relay, same result
    -Pump won't run if pins aren't bridged

    I can't figure out why it does not activate the relay, starting to believe it is witchcraft
    Last edited by M42Power; 07-27-2019, 04:27 AM.
    Originally posted by kendogg
    Don't know, but the E90 wasn't designed from the ground-up intending to be a racecar like the E30 was.
    OG RACECAR

    #2
    crank position sensor
    1991 318is --- currently not road worthy
    1991 318i ---- 308K - retired

    Originally posted by RickSloan
    so if you didnt get it like that did you glue fuzzy oil to the entire thing?

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